Enum OpCode 

pub enum OpCode {
    Query,
    Status,
    Notify,
    Update,
    Unknown(u8),
}

Operation code for queries, updates, and responses

RFC 1035, DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION, November 1987

OPCODE          A four bit field that specifies kind of query in this
                message.  This value is set by the originator of a query
                and copied into the response.  The values are:

                0               a standard query (QUERY)

                1               an inverse query (IQUERY)

                2               a server status request (STATUS)

                3-15            reserved for future use

Variants

Query

Query request RFC 1035

Status

Status message RFC 1035

Notify

Notify of change RFC 1996

Update

Update message RFC 2136

Unknown(u8)

Any other opcode

Implementations

impl OpCode

Convert from u8 to OpCode

use hickory_proto::op::op_code::OpCode;

let var: OpCode = OpCode::from_u8(0);
assert_eq!(OpCode::Query, var);

pub fn from_u8(value: u8) -> OpCode

Decodes the binary value of the OpCode

Trait Implementations

impl Clone for OpCode

fn clone(&self) -> OpCode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OpCode

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for OpCode

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl From<OpCode> for u8

Convert from OpCode to u8

use hickory_proto::op::op_code::OpCode;

let var: u8 = From::from(OpCode::Query);
assert_eq!(0, var);

let var: u8 = OpCode::Query.into();
assert_eq!(0, var);

fn from(rt: OpCode) -> u8

Converts to this type from the input type.

impl Hash for OpCode

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for OpCode

fn eq(&self, other: &OpCode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for OpCode

fn partial_cmp(&self, other: &OpCode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for OpCode

impl Eq for OpCode

impl StructuralPartialEq for OpCode